Improvement in stoves



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N0.l4`9,`803. Patented Apr|l44,1874.

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UNITED STATES *PATENT Orificn.r

HARVEY srnAGUE, on oHURoHviLLE, NEW'YORK;

Y IMPROVEMENr IN sTovl-:s.

Specification forming part of Letters Patent 0. l 49,803, dateda April 14, 1874; applicationaled I February 17, 1874.

To all whom it may concern;

Be it known that I, HARVEY SPRAGUE, of Churchville, in the county of Monroe and State of New York, have invented a certain new and useful Improvement in Stoves 5 and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same.

My invention consists of the combination, in a heating-stove, of a peculiar arrangement of the interior heating apparatus with a waterreservoir on top,'the` effect being such that the air is received through a hollow ring and pipes to the interior heating-chamber, and is thence conducted through other pipes to the waterreservoir, where it becomes impregnated with moisture before being conveyed away.

In the drawings, Figure 1 is a central vertical section. Fig. 2 is a horizontal section through the water-tank. Fig. 3 is a modification of Fig. l. Fig. 4 is an elevation of the interior heating-chamber and its connecting air-plpe.

A represents a parlor-stove of ordinary form.

l B is the ash-pit; C, the fire-pot, and D the fuel-magazine. These parts are of usual construction. E is a hollow ring formed at the top of the fire-pot, and extending all the way around. It receives cold air, either from the room, through induction-openings a a, at suitable distances apart, as shown in Fig. l, or'by means of a pipe which extends down from the ring, through the stove, and .through the floor, as shown in Fig. 3. This feature, however, is not new in itself, and I do not claim such. Gr is a heating-chamber located above there, and surrounding the fuel-magazine. Inthe case of stoves having no magazine, the heating-chamber is made without a central opening, and has a large hot-air pipe on top, as shown in Fig. 4. H H are pipes or tubes connecting the heating-chamber Gr with the hollow air-ring E. I I are corresponding pipes, which extend from the top of the heatingchamber up through the top of the stove, and pass into the water-reservoir. Kis the waterreservoir, which is situated above the top of the stove, and at a little distance therefrom, as

shown, so-that it will not receive too much heat b b are conical thimbles, projecting upward from thebottom of the water-reservoir, through which pass the pipes I I, meeting only at the top with the top of the cones, where they are made tight to .prevent the passage of water downward. The object of this arrangement is to prevent the heat from the pipes from striking the water till it has passed above the surface of the same. The reservoir is provided with a spout, c, for lling the same, and the pipes I I are carried to such a height that their tops are always above water. air, after passing through the water-reservoir, escapes through the ordinary hot-air pipes L, of which one or more may be employed.

The operation is as follows: rIhe cold air enters the ring E, and thence passes through the pipes H, where it is heated. It then ascends the pipes I, and enters the water-tank K, where it becomes moistened, and thence escapes through the pipes L. The ring E being located over the fire, the air becomes partially heated before entering the heating-chamber. In this chamber it becomes highly heated and rises rapidly.- The water-tank, being elevated above the stove, does not receive a high degree of heat, but only enough to raise a gentle vapor without producing steam. The thimbles b prevent the passage of overheat to the water, as before described.

This interior heating arrangement allows either a magazine or an open stove to be used, and its arrangement is such that while a great heating capacity is attained in the. heating attachment itself it does not obstruct or interfere with the direct radiation of heat from the stove-body, as the heat comes in contact with the cylinder at all points. In fact, the chamber Gr causes a greater radiation by forcing the heat to pass around it and 1 in contact with the sides of the stove.

I do not wish to be understood as laying.

heating attachment is so constructed and ar- I The hot ranged that it forms no part of the construction of the stove proper, and may be readilyl applied to stoves already in use, and in the idea of arranging the Water-tank beyond the action of any radiated heat, so that the Water is not likely to be too quickly evaporated, or too highly heated.

What I claim, and desire to secure by Letters Patent, is-

1. In combination with the heating-ring E and Water-tank K, the chamber Gr, provided with pipes H I, forming an independent device, and secured in position and operating in the manner and for the purposes set forth.

2. The Water-tank K, provided with the eon= ical thimbles b, connected to suitable conducting-pipes I, thus providing an open air-space between the Walls of the thirn'ble and the pipe, whereby the heating of the Water is avoided, as set forth.

In Witness whereof I have hereunto signed my name in the presence of two subscribing Witnesses.

HARVEY SPRAGUE. 

